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ZXLD1362EV3 User Guide issue 1 

6/7 

11-01-2008 

PERFORMANCE 
 

The system efficiency depends on the sense resistor, supply voltage, switching inductor, and the number of LEDs.  
 
With a 60V supply and 15 LEDs, the switching frequency is typically 200 kHz and efficiency levels >90% are 
achievable. 
 

 

Visit our website

 

www.zetex.com

 to find useful tools for circuit design and simulation.

 

 

REFERENCE 

[1] ZXLD1362 Datasheet – 

www.zetex.com

 

Содержание ZXLD1362EV3

Страница 1: ...l reduce the supply current Please refer to the Zetex ZXLD1360 and ZXLD1350 products for applications requiring input voltages lower than 30V The nominal current for the evaluation board is set at 700...

Страница 2: ...gen replacement LEDs Automotive lighting Illuminated signs ZXLD1362 Device Packages Pin and Definitions TSOT23 5 pack ZXLD1362 Device Pin Definition Name Pin No Description LX 1 Drain of NDMOS switch...

Страница 3: ...pacitor C2 100nF is used to provide additional decoupling to reduce any high frequency noise as well as enabling the soft start function Both DC and PWM dimming can be achieved by driving the ADJ pin...

Страница 4: ...l comparator When this voltage falls to the internally set lower threshold the NDMOS switch is turned on again This switch on and off cycle continues to provide an average current set by the sense res...

Страница 5: ...battery supply protection 3 Set the PSU to the desired input voltage usually between 30V and 60V 4 Turn on the PSU The external LEDs will illuminate and the current should be approximately 700mA Warn...

Страница 6: ...or supply voltage switching inductor and the number of LEDs With a 60V supply and 15 LEDs the switching frequency is typically 200 kHz and efficiency levels 90 are achievable Visit our website www zet...

Страница 7: ...service and products we strongly advise the purchase of parts directly from Zetex Semiconductors or one of our regionally authorized distributors For a complete listing of authorized distributors plea...

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